Machine fob shaving shingles



SIMEON WOOD, OF WORCESTER, MASSACHUSETTS.

MACHINE FOR SHAVING SHINGLES.

Y Specicaton of Letters Patent No. 3,405, dated January 15, 1844.

T 0 all whom it may concern Be it known that I, SIMnoN WOOD, ofWorcester, in the county of Worcester and State of Massachusetts, haveinvented a new and useful Machine for Shaving Shingles, called lVoodsDouble-Knife Shingle- Shaver, which is described as follows,.ref` erencebeinghad to the annexed drawings of the saine, making part of thisspecification.

Figure 1 is a side elevation of the machine. Fig. 2 is a top view. Fig.3 is a vertical section at the dotted line of Fig. 2. Fig.- 4 is avertical sectionV at the dotted line 0 0' `or Fig. a i

The frame A is made of wood, or any suitable material, and of anyconvenient; size and strength for the purpose intended; and ofrectangular, oblong, or any other form. Upon the top of the main frameAl aforesaid are placed and secured the metallic frames B, C, D`containing the boxes of the axles of rotary cams, cog wheels, pulleyssliding guides rotary guidesl and other parts hereafter described.These' frames B, O, D, are bolted securely to the caps of the main framebymeans of vertical screw bolts, pass ing through the same. In theseframes are? placed and sustained five transverse revolv-` ing axles 1,2, 3, 4, 5 turning in boxes of the usual form and construction. The axleNo. 1 carries the upper rotary cam cylinder El for drawing the shinglesforward between t-he endless revolving chain carriage for carthe knivesin conjunction with a correspond-- ing rotary cam cylinder E2 placedbelow it hereafter described. This axle also carries a small cam wheel Fthat depresses the upper knife K of the two parallel knives K K2 thatshave theshingle by depressing the stock containing said knife whichoperation takes place simultaneously with the elevation of the lowerknife K produced by a similar small cam-wheel F2 on the axle No` 2 ofthe lower cam cylinder E2 to be de-` scribed. There is also a cog wheelGr on the end of axle No. 1 that gears into a similar cog wheel H on theaxle No. 2 causing thenfi to revolve together at the same speed. The camcylinder E2and the small cam cylinder F2 are made like those abovedescribed and of the same size. An intermediate axle No.` 3 `is placedimmediately in frontof the lower cam cylinder below the lower knifehaving a cog wheel I on one of its endswhich works sustaining andcarrying` forward the pieces into the cog wheel H of the axle No. 2 and`a large cog wheel J and a small cog-wheel L on its opposite end-outsidethe framethe large cog wheel J working into a small cog wheel M is onthe driving axle 6 and `the small cog wheel L working into a cog wheel Oin the projecting end of the axle No. 4 and the endless chain carriage`hereafter described. The axle No. 4 is placed in lfront of the lowerknife K2 and below the `level of the same and carries in addition to thecog wheel O `just described two chain cog wheels P P placed inside theframe for revolving the endless chain carriage Qi Q, that brings forwardthe shingles to be shaved.

" The axle No. 5 is placed nearthe rear end ofthe frame and carries twolianged wheels or pulleys that `sustain and carry the l chains of theendless chain carriage.` i The f axle No. 6, Fig.` 3, is called thedriving axle and is placed `in uboxes secured tothe under sides of thecaps of the main frames imimediately below the intermediate axle be`fore described, having a cog wheel M` on one of its ends that projectsbeyond the side .3 of theframe into which the large cog `wheel 1 worksas before mentioned anda drivingor band pulley N on itsopposite end forthe band leading from the power that is to p ro.

pel the machine.n This pulley is thrown into or out of gear with itsaxle at pleas-ure by .means of the usual crutch lever-.as` seen i at Z.

The endless chain Q forming the sides of rying the pieces of wood to bemade into arms and slots in the aforesaid frames.

Revolving transverse parallel rests Q2 for soy - shingles is made ofthick pieces of wrought f ,w or boiler iron forming the linkspunched iand` united by pivots and transverse round A, parallel bars Q2 of iron.These Ichains areA `carried around the chain gear and pulleys iaforesaid and move in parallel grooved ,ways or guides These guides arecast i with grooves in their innersides which prevent the chain fromraising or falling fro-1n a horizontal line. The said guides havevertical arms S extending down nearly to the y vtop of the mainframe-.which arms are Vprovided with dovetailed tongues S2 that v movein corresponding dovetailed grooves in the guide frames C beforementioned being held at any height required by means of 4.horizontalscrews T passing through said of wood to be made into shingles areplaced in the aforesaid chains and arranged at such distances apart asto bring forward a piece of wood for a shingle at every revolution ofthe cam cylinder or every vibration of the knives. These rests arerabbeted on the upper side forming a support to receive the end of theshingle and in passing through the guides the back of said rests standin aI vertical positio-n and the bottom in a horizontal position havinga tail piece g to each rest which slides along on the lower parts of theguides keeping the rest in a proper position for conveying the shingleto the knives. When the rests have carried forward the shingle anddelivered it between the two rotary guides (g), hereafter described, andto the knives they reach the ends of the horizontal grooved guides Rwhen the tail pieces g slide olf said guides and fall causing the reststo turn on their axes and become liberated from the shinglethe restspass on with the chains revolving around the gear and pulleys to receiveother shingles to be shaved. In order to produce a certain action of therests in turning should the gravity of the tail pieces not be sufficienta spring stop U is placed upon the top of one of the grooved guides orin any convenient position against which a pin z' projecting verticallyfrom the tail pieces strikes in revolving causing the rest to turn andfree itself from the end of the shingle while being delivered to theknives. The chains are tightened by means of the usual kind of slidingVboxes and screws V W at the rear end acting on the axle of the pulleys.

The knives K1K2 for shaving the shingles are made of the best cast steeland are fastened by screws or otherwise each to a vertically rising andfalling metallic frame or vibrating knife stock X one at each end ofeach knife. The knife stock X at one end of the upper knife is cast witha cylindrical stem Y projecting vertically downward for entering acorresponding cylindrical socket formed in the cylindrical stem a of thelower knife K2 in which socket is placed a spiral spring b for keepingthe two knives extended apart when not in the act of shaving theshingle-said spring being contracted when the knives are brought towardeach other t-o shave the shingle and extended when separated. The stockis perforated with a number' of apertures to admit screws for fasteningthe knife to the stock and for setting the knife. The small screw bplaced between the beveled part of the knife and the stock is forsetting the angle of the blade. The small screw S2 passing through thepart of the stock turned at right angles presses against the back oft-he knife and is used for setting the edge thereof. rlhe stock isextended back beyond the center of the axle of the small cam wheel Fwhich depresses the same gradually in cutting the upper side of theshingle to its required taper simultaneously with the operation of thelower cam wheel that raises the under knife to cut the taper of theother side of the shingle. A curved metallic guide d is fastened to theupper side of the upper knife for guiding the chips and preventing themfrom passing between the cam cylinders. The under knife is made andadjusted in the same manner as the upper knife except that it is placedin an inverted position directly under the upper knife and is fastenedto a stock with a hollow or socket, stem a instead of a solidcylindrical stem as before stated. The hollow cylindrical stem a risesand falls in a corresponding cylindrical box e bolted to the main frameA. rlhe stocks, screws, and spring at the opposite ends of the knives,are made, adjusted, and operated in the same manner as those justdescribed.

rlwo rotary or revolving transverse parallel guides g are placed infront of the cutting edges of the knife for guiding the shingle properlyto the knives. These pivots of the guide rollers are placed in verticalsliding bars f j of metal that upon each other inside the frame in loopsfastened thereto: said bars are attached to the extremities of armsprojecting from a vibrating axle m, turning in boxes on the under sideof the frame by vertical connecting rods m, o, one of said arms Z isextended-having attached to its outer end a pitman p leading down to atreadle t through which it passes, having a nut r on the under side forincreasing or diminishing the sweep of the arms and consequently thedistance of the movement of the guide rollers to correspond with therequired thickness of shingle at the butt end. A spring a fastened tothe frame presses against the under side of said extended arms Z2 andkeeps the guide rollers apart. The descent of the treadle closes therollers and controls the spring simultaneously.

Operation: The machine being in motion by steam, manual, or horse power,place the rectangular piece of wood to be shaped and shaved into ashingle upon the rests 'and connecting bars of the endless chains. lt iscarried forward by the chain carriage and delivered between theguidare-11ers in front of the knives and by these guided to the knivesbetween which it is forced by the chain carriage continuing to revolve,the knives at the same time (which are set at the proper angle required)being caused to approach each other gradually as the wood passes betweenthem for the purpose of giving it the proper taper for a shingle and assoonr as the butt end has passed through between the knives it is seizedby the revolving cam cylinder and the shingle held firmly and drawnthrough between the knives and discharged at the end of the frametherevolvingrest during the operation of shaving the shingle, and when itarrives at the ends of the guides turns by the weight of `the tailpieces or by the spring stop or otherwise to liberate the saine from theshingle. As fast as one piece of wood is conducted to the knives anotheris put upon the endless `chain carriage and carried forward `in the samemanner and thus a succession of pieoeso-f wood are kept continuallypassing through the machine to be shaped and shaved into shingles in themanner before described.

I am aware that a patent has been granted to another person for ashingle machine in which the shingle is shaved and tapered by means oftwo knives that are made to ap- :preach each other as the shingle`passes through and therefore it will be understood tnhat I do not claimthis as of my invention;

What I do claim as my invention and desire to secure by Letters Patentis- 1. The combination of the cams F F2 that force the knives toapproach each other with the cams E E2 that draw the shingle between theknives substantially as herein described.

2. And I also claim the described arrangement of the stocks to which theknives are attached by making the ends of the upper one slide in thehollow ends of the lower one-springs being interposed between their endsto force the knives apart at the end of each operation.

3. And nally I claim the turning rests for feeding the shingles incombination with the chain and guide for the purpose and in the mannerdescribed.

SIMEON 'WOOD Witnesses:

IRA M. BA'r'roN, FRANCIS SIBLEY.

